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CVSS: 5.0EPSS: 0%CPEs: 2EXPL: 0

Cisco Virtual Private Network (VPN) Client software 2.x.x and 3.x before 3.0.5 allows remote attackers to cause a denial of service (crash) via TCP packets with source and destination ports of 137 (NETBIOS). • http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml http://www.securityfocus.com/bid/5649 https://exchange.xforce.ibmcloud.com/vulnerabilities/10042 •

CVSS: 5.0EPSS: 0%CPEs: 7EXPL: 0

Cisco VPN 3000 Concentrator before 2.5.2(F), with encryption enabled, allows remote attackers to cause a denial of service (reload) via a Windows-based PPTP client with the "No Encryption" option set. • http://www.cisco.com/warp/public/707/vpn3k-multiple-vuln-pub.shtml http://www.iss.net/security_center/static/10021.php http://www.securityfocus.com/bid/5625 •

CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0

Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.1C, does not properly verify that certificate DN fields match those of the certificate from the VPN Concentrator, which allows remote attackers to conduct man-in-the-middle attacks. • http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml http://www.securityfocus.com/bid/5652 https://exchange.xforce.ibmcloud.com/vulnerabilities/10045 •

CVSS: 5.0EPSS: 0%CPEs: 20EXPL: 0

Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.3, allows remote attackers to obtain potentially sensitive information without authentication by directly accessing certain HTML pages. • http://www.cisco.com/warp/public/707/vpn3k-multiple-vuln-pub.shtml http://www.iss.net/security_center/static/10024.php http://www.securityfocus.com/bid/5616 •

CVSS: 7.5EPSS: 0%CPEs: 13EXPL: 0

Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.2B, does not generate sufficiently random numbers, which may make it vulnerable to certain attacks such as spoofing. • http://www.cisco.com/warp/public/707/vpnclient-multiple2-vuln-pub.shtml http://www.securityfocus.com/bid/5653 https://exchange.xforce.ibmcloud.com/vulnerabilities/10046 •